A yawn is a reflex consisting of the simultaneous inhalation of air and the
stretching of the ... This "contagious" yawning has also been observed in
chimpanzees, dogs, and can occur acros...
Jun 11, 2015 ... What is yawning? And why do we do so much of it? Neuroscientist and yawn
expert Robert Provine says it's “ancient and autonomic.” It stems ...
Contagious yawning is associated with the same parts of the brain that deal with
empathy, according to a recent study. Learn about contagious yawning.
Yawning has subsequently become contagious behaviour because it improves
the survival function of herds. If there is some potential danger nearby, the ...
Aug 17, 2015 ... Psychopaths May Be Immune To Contagious Yawning. Those who lack empathy
don't seem to “catch” yawns like the rest of us do. 08/17/2015 ...
Jun 10, 2013 ... We all do it, and we all know it has at least something to do with how tired we feel
. But unlike sleep apnea or laptops in the bedroom, yawning is ...
Aug 24, 2015 ... People high in psychopathic personality traits often don't "catch" the contagious
yawn, a new study finds.
Jul 5, 2007 ... Rather than being a precursor to sleep, yawning is designed to keep us awake,
say US researchers. But why does seeing someone else yawn ...
Dec 15, 2011 ... Ever wonder why we yawn or why yawning is contagious? We take a look at the
most popular answers to this frequently asked question.
www.ask.com/youtube?q=Why Are Yawns Contagious?&v=4NpG4F9yq00
Nov 7, 2013 ... View full lesson: http://ed.ted.com/lessons/why-is-yawning-contagious-claudia-
aguirre *Yaaawwwwwn* Did just reading the word make you ...